Precision irrigation utilizing soil moisture data and valve-in head sprinkler systems may be a viable solution for sustainable water management on complex turfgrass areas. There is currently no research investigating the factors that influence soil moisture and turfgrass quality variability within sand-capped golf course fairways to aid in precision irrigation-related management decisions. Therefore, the objective of this study was to measure several turfgrass and soil characteristics from two sand-capped fairways during dry down events from either rainfall or irrigation to determine their relationship and contribution to soil moisture and turfgrass quality variability. Considerable spatiotemporal variability was observed within the two fairways during the dry down periods. Factors that were found to have a significant influence on soil moisture and turfgrass quality were sand capping depth, elevation, and thatch depth, but these relationships were not consistent between rainfall versus irrigation events, days after dry down, or even the specific fairways. Also, the direction of many of the relationships were opposite of what was expected. These findings highlight the complexity of soil moisture and turfgrass quality variability on sand-capped golf course fairways. To incorporate soil moisture sensor technologies into large-scale precision irrigation practices, mapping soil moisture with an understanding of contributing factors is a necessary preliminary step. Although there are several current practical limitations, the information presented in this study provides a foundation for future research.

利用土壤水分数据和阀入式喷头系统进行精确灌溉可能是复杂草坪区域可持续水资源管理的可行解决方案。目前没有研究调查影响沙顶高尔夫球场球道内土壤水分和草坪草质量变异性的因素，以帮助制定与灌溉相关的精确管理决策。因此，本研究的目的是在降雨或灌溉造成的干涸事件期间测量两条沙顶球道的几种草坪和土壤特征，以确定它们对土壤水分和草坪质量变异性的关系和贡献。在干涸期间，两条球道内观察到相当大的时空变化。发现对土壤水分和草坪草质量有显着影响的因素是沙盖深度、海拔和茅草深度，但这些关系在降雨与灌溉事件、干涸后的天数甚至特定球道之间并不一致。此外，许多关系的方向与预期相反。这些发现突出了沙顶高尔夫球场球道上土壤水分和草坪草质量变化的复杂性。要将土壤水分传感器技术纳入大规模精确灌溉实践，在了解影响因素的情况下绘制土壤水分图是必要的初步步骤。尽管目前存在一些实际限制，但本研究中提供的信息为未来的研究提供了基础。